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Data Format and Reduction

Phoenix data are formatted into IRAF compatible images (fits files). Gemini does not provide a specific IRAF package for Phoenix, but the data reduction process is straightforward and documented in the NOAO Phoenix web pages.

Observation Preparation

This section describes how to prepare and check Phoenix observations.

Guiding Options

Phoenix does not contain an on-instrument wavefront sensor and therefore the fast tip-tilt guiding, which is mandatory for all observations with Gemini, requires guide stars to be acquired using the facility peripheral wavefront sensor (usually PWFS-2).

Sensitivity and Overheads

It is recommended that the user consult the Sensitivity Table or the Sensitivity Plots to estimate limiting magnitudes and total integration times.

Spectroscopy

High resolution spectroscopy can be obtained with Phoenix in the 1-5µm region, within the bandpasses of the blocking filters mounted in the instrument. A small range of narrow slit widths (providing different resolving powers) is available. The properties of the slits and blocking filters are described in this section, as well as information about exposure times and observing hints.

Sensitivity Estimates

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